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Wysocki" , Prashant Malani , Benson Leung , Guenter Roeck Subject: [PATCH v6 6/7] dt/bindings: drm/bridge: it6505: Add mode-switch support Date: Thu, 24 Nov 2022 18:20:55 +0800 Message-Id: <20221124102056.393220-7-treapking@chromium.org> X-Mailer: git-send-email 2.38.1.584.g0f3c55d4c2-goog In-Reply-To: <20221124102056.393220-1-treapking@chromium.org> References: <20221124102056.393220-1-treapking@chromium.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Vasut , devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , chrome-platform@lists.linux.dev, linux-kernel@vger.kernel.org, Javier Martinez Canillas , dri-devel@lists.freedesktop.org, Stephen Boyd , Pin-yen Lin , Thomas Zimmermann , Hsin-Yi Wang , Xin Ji , Allen Chen , AngeloGioacchino Del Regno Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" ITE IT6505 can be used in systems to switch the DP traffic between two downstreams, which can be USB Type-C DisplayPort alternate mode lane or regular DisplayPort output ports. Update the binding to accommodate this usage by introducing a data-lanes and a mode-switch property on endpoints. Signed-off-by: Pin-yen Lin --- Changes in v6: - Remove switches node and use endpoints and data-lanes property to describe the connections. .../bindings/display/bridge/ite,it6505.yaml | 94 ++++++++++++++++++- 1 file changed, 90 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml index 833d11b2303a..b4b9881c7759 100644 --- a/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml +++ b/Documentation/devicetree/bindings/display/bridge/ite,it6505.yaml @@ -52,9 +52,53 @@ properties: maxItems: 1 description: extcon specifier for the Power Delivery - port: - $ref: /schemas/graph.yaml#/properties/port - description: A port node pointing to DPI host port node + data-lanes: + maxItems: 1 + description: restrict the dp output data-lanes with value of 1-4 + + max-pixel-clock-khz: + maxItems: 1 + description: restrict max pixel clock + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: A port node pointing to DPI host port node + + port@1: + $ref: /schemas/graph.yaml#/properties/port-base + description: + Video port for panel or connector. + + patternProperties: + "^endpoint@[01]$": + $ref: /schemas/media/video-interfaces.yaml# + type: object + unevaluatedProperties: false + + properties: + reg: + maxItems: 1 + + remote-endpoint: true + + data-lanes: + minItems: 1 + uniqueItems: true + items: + - enum: [ 0, 1, 2, 3] + + mode-switch: + type: boolean + description: Register this node as a Type-C mode switch or not. + + required: + - reg + - remote-endpoint required: - compatible @@ -62,7 +106,7 @@ required: - pwr18-supply - interrupts - reset-gpios - - extcon + - ports additionalProperties: false @@ -92,3 +136,45 @@ examples: }; }; }; + - | + #include + + &i2c3 { + clock-frequency = <100000>; + + it6505dptx: it6505dptx@5c { + compatible = "ite,it6505"; + interrupts = <8 IRQ_TYPE_LEVEL_LOW 8 0>; + reg = <0x5c>; + pinctrl-names = "default"; + pinctrl-0 = <&it6505_pins>; + ovdd-supply = <&mt6366_vsim2_reg>; + pwr18-supply = <&pp1800_dpbrdg_dx>; + reset-gpios = <&pio 177 0>; + hpd-gpios = <&pio 10 0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + port@0 { + reg = <0>; + it6505_in: endpoint { + remote-endpoint = <&dpi_out>; + }; + }; + port@1 { + reg = <1>; + ite_typec0: endpoint@0 { + mode-switch; + data-lanes = <0 1>; + remote-endpoint = <&typec_port0>; + }; + ite_typec1: endpoint@1 { + mode-switch; + data-lanes = <2 3>; + remote-endpoint = <&typec_port1>; + }; + }; + }; + }; + };